AFP check on Thomson death threats

Australian Federal Police are inquiring into death threats against federal MP Craig Thomson.

AFP officers are understood to have gathered evidence from Mr Thomson's Dobell electorate office on the NSW central coast on Friday.

Mr Thomson told parliament on Monday that he, his staff and family had received threatening emails, letters and phone calls.

Among the emails were such comments as: "Go cut your wrists or better still hang yourself", "Go out the back, cut your throat – that's the only way" and "You are dead. A bullet between the eyes will save taxpayers' money".

A number of the emails are understood to have come from one person.

An AFP spokeswoman said police had received an official referral from Mr Thomson on Thursday regarding emails.

But an investigation had not yet been launched.

"All referrals received by the AFP are evaluated ... before an investigation can take place," the spokeswoman said.

A person found guilty of threatening to kill can receive up to 10 years in jail, and "interfering with political liberty" attracts a three-year sentence.